23IL | pdb_000023il

Cryo-EM structure of Chaetomium thermophilum SWI/SNF bound to a nucleosome


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ESCOP2B SuperfamilyCore histone-like 8096712 3001387 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCore histone-like 8096712 3001387 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyCore histone-like 8067126 3001387 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCore histone-like 8067126 3001387 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
B, F
PF15511Centromere kinetochore component CENP-T histone fold (CENP-T_C)Centromere kinetochore component CENP-T histone foldCENP-T is a family of vertebral kinetochore proteins that associates directly with CENP-W. The N-terminus of CENP-T proteins interacts directly with the Ndc80 complex in the outer kinetochore. Importantly, the CENP-T-W complex does not directly asso ...CENP-T is a family of vertebral kinetochore proteins that associates directly with CENP-W. The N-terminus of CENP-T proteins interacts directly with the Ndc80 complex in the outer kinetochore. Importantly, the CENP-T-W complex does not directly associate with CENP-A, but with histone H3 in the centromere region. CENP-T and -W form a hetero-tetramer with CENP-S and -X and bind to a ~100 bp region of nucleosome-free DNA forming a nucleosome-like structure. The DNA-CENP-T-W-S-X complex is likely to be associated with histone H3-containing nucleosomes rather than with CENP-nucleosomes. This domain is the C-terminal histone fold domain of CENP-T, which associates with chromatin [2-3].
Domain
C, G
PF16211C-terminus of histone H2A (Histone_H2A_C)C-terminus of histone H2A- Family
I [auth K]PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase. Domain
I [auth K]PF00176SNF2-related domain (SNF2-rel_dom)SNF2-related domainThis domain is found in proteins involved in a variety of processes including transcription regulation (e.g., SNF2, STH1, brahma, MOT1), DNA repair (e.g., ERCC6, RAD16, RAD5), DNA recombination (e.g., RAD54), and chromatin unwinding (e.g., ISWI) as w ...This domain is found in proteins involved in a variety of processes including transcription regulation (e.g., SNF2, STH1, brahma, MOT1), DNA repair (e.g., ERCC6, RAD16, RAD5), DNA recombination (e.g., RAD54), and chromatin unwinding (e.g., ISWI) as well as a variety of other proteins with little functional information (e.g., lodestar, ETL1)[1,2,3]. SNF2 functions as the ATPase component of the SNF2/SWI multisubunit complex, which utilises energy derived from ATP hydrolysis to disrupt histone-DNA interactions, resulting in the increased accessibility of DNA to transcription factors.
Domain
I [auth K]PF07529HSA domain (HSA)HSA domain- Family
J [auth L]PF00022Actin (Actin)Actin- Family
K [auth M]PF00022Actin (Actin)Actin- Family
L [auth N],
M [auth O]
PF00249Myb-like DNA-binding domain (Myb_DNA-binding)Myb-like DNA-binding domainThis family contains the DNA binding domains from Myb proteins, as well as the SANT domain family [1]. Domain
L [auth N],
M [auth O]
PF16495SWIRM-associated region 1 (SWIRM-assoc_1)SWIRM-associated region 1- Family
L [auth N],
M [auth O]
PF04433SWIRM domain (SWIRM)SWIRM domainThis SWIRM domain is a small alpha-helical domain of about 85 amino acid residues found in chromosomal proteins. It contains a helix-turn helix motif and binds to DNA [1]. Domain
N [auth P]PF02201SWIB/MDM2 domain (SWIB)SWIB/MDM2 domainThis family includes the SWIB domain and the MDM2 domain [1]. The p53-associated protein (MDM2) is an inhibitor of the p53 tumour suppressor gene binding the transactivation domain and down regulating the ability of p53 to activate transcription. Thi ...This family includes the SWIB domain and the MDM2 domain [1]. The p53-associated protein (MDM2) is an inhibitor of the p53 tumour suppressor gene binding the transactivation domain and down regulating the ability of p53 to activate transcription. This family contains the p53 binding domain of MDM2 [2].
Domain
O [auth Q]PF20497SWI/SNF and RSC complexes subunit Ssr4 C-terminal (SWI-SNF_Ssr4_C)SWI/SNF and RSC complexes subunit Ssr4 C-terminalThis entry represents the C-temrinal domain of Ssr4 (SWI/SNF and RSC complexes subunit ssr4), an essential component of the chromatin-remodelling SWI/SNF and RSC (remodelling the structure of chromatin) complexes only found in S. pombe [1]. This doma ...This entry represents the C-temrinal domain of Ssr4 (SWI/SNF and RSC complexes subunit ssr4), an essential component of the chromatin-remodelling SWI/SNF and RSC (remodelling the structure of chromatin) complexes only found in S. pombe [1]. This domain contains a conserved RYxxxHEWMEEI/V motif. RSC is involved in transcription regulation and nucleosome positioning which controls, particularly, membrane and organelle development genes. The ATP-dependent chromatin remodelling complex SWI/SNF is required for the positive and negative regulation of gene expression of a large number of genes through the regulation of nucleosome remodelling.
Domain
Q [auth S]PF04855SNF5 / SMARCB1 / INI1 (SNF5)SNF5 / SMARCB1 / INI1- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, E
Histone H3
B, F
Histone H4
C, G
Histone H2A
D, H
Histone H2B
I [auth K]WD40 repeat-containing protein
J [auth L]Putative chromatin structure remodeling complex protein- - -
K [auth M]Actin-related protein 4
L [auth N],
M [auth O]
Ssr1
N [auth P]DM2 domain-containing protein- - -
O [auth Q]DUF1750-domain-containing protein- -
P [auth R]ARID domain-containing protein
Q [auth S]Snf5-
R [auth T]Nuclear localization protein
S [auth U]LYR family protein- - -
T [auth I]DNA (167-MER)---
U [auth J]DNA (167-MER)---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, E
IPR009072Histone-foldHomologous Superfamily
A, E
IPR000164Histone H3/CENP-AFamily
A, E
IPR007125Core Histone H2A/H2B/H3 domainDomain
B, F
IPR009072Histone-foldHomologous Superfamily
B, F
IPR001951Histone H4Family
B, F
IPR035425CENP-T/Histone H4, histone foldDomain
B, F
IPR019809Histone H4, conserved siteConserved Site
B, F
IPR004823TATA box binding protein associated factor (TAF), histone-like fold domainDomain
C, G
IPR009072Histone-foldHomologous Superfamily
C, G
IPR002119Histone H2AFamily
C, G
IPR032454Histone H2A, C-terminal domainDomain
C, G
IPR032458Histone H2A conserved siteConserved Site
C, G
IPR007125Core Histone H2A/H2B/H3 domainDomain
D, H
IPR009072Histone-foldHomologous Superfamily
D, H
IPR000558Histone H2BFamily
D, H
IPR007125Core Histone H2A/H2B/H3 domainDomain
D, H
IPR055333Histone H2B, conserved siteConserved Site
I [auth K]IPR019775WD40 repeat, conserved siteConserved Site
I [auth K]IPR001650Helicase, C-terminal domain-likeDomain
I [auth K]IPR014001Helicase superfamily 1/2, ATP-binding domainDomain
I [auth K]IPR036322WD40-repeat-containing domain superfamilyHomologous Superfamily
I [auth K]IPR001487BromodomainDomain
I [auth K]IPR036427Bromodomain-like superfamilyHomologous Superfamily
I [auth K]IPR001680WD40 repeatRepeat
I [auth K]IPR049730SNF2/RAD5-like, C-terminal helicase domainDomain
I [auth K]IPR014012Helicase/SANT-associated domainDomain
I [auth K]IPR014978Glutamine-Leucine-Glutamine, QLQDomain
I [auth K]IPR029295Snf2, ATP coupling domainDomain
I [auth K]IPR015943WD40/YVTN repeat-like-containing domain superfamilyHomologous Superfamily
I [auth K]IPR038718SNF2-like, N-terminal domain superfamilyHomologous Superfamily
I [auth K]IPR000330SNF2, N-terminal domainDomain
I [auth K]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
J [auth L]IPR043129ATPase, nucleotide binding domainHomologous Superfamily
J [auth L]IPR035959RutC-like superfamilyHomologous Superfamily
J [auth L]IPR006175YjgF/YER057c/UK114 familyFamily
J [auth L]IPR004000Actin familyFamily
K [auth M]IPR004001Actin, conserved siteConserved Site
K [auth M]IPR043129ATPase, nucleotide binding domainHomologous Superfamily
K [auth M]IPR004000Actin familyFamily
L [auth N],
M [auth O]
IPR009057Homeodomain-like superfamilyHomologous Superfamily
L [auth N],
M [auth O]
IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
L [auth N],
M [auth O]
IPR017884SANT domainDomain
L [auth N],
M [auth O]
IPR001005SANT/Myb domainDomain
L [auth N],
M [auth O]
IPR007526SWIRM domainDomain
L [auth N],
M [auth O]
IPR032451SMARCC, C-terminalDomain
L [auth N],
M [auth O]
IPR041984Rsc8/Ssr1/Ssr2, zinc finger, ZZ-typeDomain
N [auth P]IPR003121SWIB/MDM2 domainDomain
N [auth P]IPR036885SWIB/MDM2 domain superfamilyHomologous Superfamily
N [auth P]IPR019835SWIB domainDomain
O [auth Q]IPR013859SWI/SNF and RSC complexes subunit Ssr4, N-terminalDomain
O [auth Q]IPR046464SWI/SNF and RSC complexes subunit Ssr4, C-terminalDomain
P [auth R]IPR051232ARID/SWI1_ChromRemodUnknown
P [auth R]IPR001606ARID DNA-binding domainDomain
P [auth R]IPR036431ARID DNA-binding domain superfamilyHomologous Superfamily
Q [auth S]IPR006939SNF5/SMARCB1/INI1Family
R [auth T]IPR013933Chromatin-remodelling complex, RSC SWI/SNF subunit Rsc7/Swp82Family